The Challenge Hall is a building where one can produce items by purchasing them with Challenge Tokens. Challenge Tokens are ONLY obtained once a month during a 2 week event by completing 14 different challenges during that time.
Challenge Hall Items
The following items can be produced in the Challenge Hall, for the indicated prices:
- List of items since October 18th, 2024
- Experience Bar x5 - 1
(3min) - 3 days Triple XP x1 - 10 (1h)
x2 - 25 
(8h)- Legendary Mutant: Men'ki Guard (limited time) - 40 (6h)
- x2 - 50 (1d)
- x3 - 70 (18h)
- Exclusive Mutant: Dr. Nucleus (limited time) - 100 (1d)
- x2 - 120 (1d 12h)
- Exclusive Mutant: Heimdall (limited time) - 180 (2d)
- List of items since [...?] 2024
- Experience Bar x5 - 1 (3min)
- 3 days Triple XP x1 - 10 (1h)
- x2 - 25 (8h)
- Legendary Mutant: ED-404 (limited time) - 40 (6h)
- x2 - 50 (1d)
- x3 - 70 (18h)
- Exclusive Mutant: Rakk 'N' Ruin (limited time) - 100 (1d)
- x2 - 120 (1d 12h)
- Exclusive Mutant: Veren Kaeesu (limited time) - 180 (2d)
- List of items since [...?]
- Experience Bar x5 - 1
- 3 day Triple XP x1 - 10
- x2 - 25
- Legendary Mutant: Hippopotank (limited time) - 40
- x2 - 50
- x3 - 70
- Exclusive Mutant: Space Surfer (limited time) - 100
- x2 - 120
- Exclusive Mutant: Jurassic Terror- 240
- List of items since February 8th, 2019
- Experience Bar x5 - 1
- 3 day Triple XP x1 - 10
- Legendary or Special Mutant: Sgt. Pandamonium (limited time) - 20
- x2 - 45
- x2 - 50
- x3 - 70
- Legendary or Special Mutant Gamallia (limited time) - 100
- x2 - 120
- Exclusive Mutant: Veren Kaeesu- 180
- List of items since ? ?th, 201?
- Experience Bar x5 - 1
- Big Med Pack x10 - 5
- Legendary or Special Mutant (limited time) - 15
- - 12
- Experience Jar x10 - 25
- x2 - 30
- 7-Day Triple XP x2- 45
- x3 - 60
- Exclusive Mutant: Rakk 'N' Ruin - 90
- List of items since July 1st, 2015
- Experience Bar x5 - 1
- Big Med Pack x10 - 5
- Legendary or Special Mutant (limited time) - 20
- x2 - 45
- Experience Jar x20 - 50
- x3 - 70
- 3-Day Triple XP x3 - 95
- x4 - 120
- Exclusive Mutant: Hog the Ripper - 180
- List of items since November 21st, 2015
- Experience Bar x5 - 1
- Big Med Pack x10 - 7
- Legendary or Special Mutant (limited time) - 20
- x2 - 45
- x2 - 50
- x3 - 70
- 3-Day Triple XP x3 - 95
- x2 - 120
- Exclusive Mutant: Scarlett - 180
- List of items since February 17th, 2016
- Experience Bar x5 - 1
- Big Med Pack x10 - 7
- Legendary or Special Mutant (limited time) - 20
- x2 - 45
- x2 - 50
- x3 - 70
- 3-Day Triple XP x3 - 95
- x2 - 120
- Exclusive Mutant: Crusher - 180
- List of items since June 16th, 2016
- Experience Bar x5 - 1
- Big Med Pack x10 - 7
- Legendary or Special Mutant (limited time) - 20
- x2 - 45
- x2 - 50
- x3 - 70
- 3-Day Triple XP x3 - 95
- x2 - 120
- Exclusive Mutant: Geomega - 180
- List of items since December 15th, 2016
- Experience Bar x5 - 1
- Big Med Pack x10 - 7
- Legendary or Special Mutant (limited time) - 20
- x2 - 45
- x2 - 50
- x3 - 70
- Legendary or Special Mutant (limited time) - 95
- x2 - 120
- Exclusive Mutant: Space Surfer- 180
- List of items since April 30th, 2017
- Experience Bar x5 - 1
- Big Med Pack x10 - 7
- Legendary or Special Mutant: Krunk (limited time) - 20
- x2 - 45
- x2 - 50
- x3 - 70
- Legendary or Special Mutant Makino (limited time) - 95
- x2 - 120
- Exclusive Mutant: Kolossus- 180
- List of items since November 24th, 2017
- Experience Bar x5 - 1
- 3 day Triple XP x1 - 10
- Legendary or Special Mutant: FootBot (limited time) - 20
- x2 - 45
- x2 - 50
- x3 - 70
- Legendary or Special Mutant Kudamono (limited time) - 95
- x2 - 120
- Exclusive Mutant: Captain Achabe- 180
- List of items since July 19th, 2018
- Experience Bar x5 - 1
- 3 day Triple XP x1 - 10
- Legendary or Special Mutant: Wynn (limited time) - 20
- x2 - 45
- x2 - 50
- x3 - 70
- Legendary or Special Mutant Frankendwarf (limited time) - 100
- x2 - 120
- Exclusive Mutant: Heimdall- 180
- List of items since February 21st, 2018
- Experience Bar x5 - 1
- 3 day Triple XP x1 - 10
- Legendary or Special Mutant: Nezarim (limited time) - 20
- x2 - 45
- x2 - 50
- x3 - 70
- Legendary or Special Mutant Hephaestus (limited time) - 100
- x2 - 120
- Exclusive Mutant: The Forgotten One- 180
Previously Available Mutants
Mutants previously was available in Challenge Hall at the 15/20-token level: